
CHAPTER 1 INTRODUCTION
User’s Manual U16890EJ1V0UD
39
(o) Real-time output function
This function transfers 6-bit data set beforehand to output latches upon occurrence of a timer compare
register match signal.
A 1-channel 6-bit data real-time output function is provided on chip.
(p) Ports
As shown below, the following ports have general-purpose port functions and control pin functions.
Port
I/O
Alternate Function
P0
7-bit I/O
NMI, external interrupt, timer output
P1
2-bit I/O
D/A converter analog output
P3
10-bit I/O
Serial interface, timer I/O
P4
3-bit I/O
Serial interface
P5
6-bit I/O
Serial interface, timer I/O, key interrupt function, real-time output function
P7
8-bit input
A/D converter analog input
P9
16-bit I/O
External address bus, serial interface, timer I/O, external interrupt, key interrupt function
PCM
4-bit I/O
External bus control signal
PCS
2-bit I/O
Chip select output
PCT
4-bit I/O
External bus control signal
PDH
6-bit I/O
External address bus
PDL
16-bit I/O
External address/data bus
1.7 Overview of Functions
(1/2)
Part Number
μ
PD703212/
μ
PD703212Y
μ
PD703213/
μ
PD703213Y
μ
PD703214/
μ
PD703214Y
μ
PD70F3214/
μ
PD70F3214Y
μ
PD70F3214H/
μ
PD70F3214HY
μ
PD703215/
μ
PD703215Y
μ
PD70F3215H/
μ
PD70F3215HY
ROM
64 KB
96 KB
128 KB
128 KB
(two-power
flash memory)
128 KB
(single-power
flash memory)
256 KB
256 KB
(single-power
flash memory)
Internal
memory
High-speed RAM
4 KB
6 KB
16 KB
Buffer RAM
64 bytes
Logical space
64 MB
Memory
space
External memory
area
3 MB
External bus interface
Address bus: 22 bits
Data bus: 8/16 bits
Multiplex bus mode/separate bus mode
General-purpose registers
32 bits
×
32 registers